package com.master.demo.generator.util;

import com.master.demo.generator.config.GenConfig;
import com.master.demo.generator.config.GenConstants;
import com.master.demo.generator.pojo.entity.GenTable;
import com.master.demo.generator.pojo.entity.GenTableColumn;
import com.master.common.constant.StringPoolConstant;
import com.master.common.utils.StringUtil;
import com.master.common.validator.ValidatorUtil;
import org.apache.commons.lang3.RegExUtils;
import org.apache.commons.lang3.StringUtils;

import java.util.Arrays;

/**
 * 代码生成器工具类
 *
 * @author: Yang
 * @date: 2023/01/31
 * @version: 1.0.0
 * https://www.panday94.xyz
 * Copyright Ⓒ 2023 熊扬软件开发工作室 Limited All rights reserved.
 */
public class GenUtils {

    /**
     * 初始化表信息
     */
    public static void initTable(GenTable genTable) {
        genTable.setFunctionAuthor(GenConfig.AUTHOR);
        genTable.setPackageName(GenConfig.PACKAGE_NAME);
        genTable.setSuperEntityClass(GenConfig.SUPER_ENTITY_CLASS);
        genTable.setSuperControllerClass(GenConfig.SUPER_CONTROLLER_CLASS);
        genTable.setClassName(convertClassName(genTable.getTableName()));
        genTable.setModuleName(getModuleName(genTable.getPackageName()));
        genTable.setBusinessName(getBusinessName(genTable.getTableName()));
        genTable.setFunctionName(replaceText(genTable.getTableComment()));
    }

    /**
     * 初始化列属性字段
     */
    public static void initColumnField(GenTable table, GenTableColumn column) {
        String dataType = getDbType(column.getColumnType());
        String columnName = column.getColumnName();
        column.setTableId(table.getId());
        column.setCreateUser(table.getCreateUser());
        // 设置java字段名
        column.setJavaField(StringUtil.toCamelCase(columnName));
        // 设置默认类型
        column.setJavaType(GenConstants.TYPE_STRING);
        column.setQueryType(GenConstants.QUERY_EQ);

        if (arraysContains(GenConstants.COLUMNTYPE_STR, dataType) || arraysContains(GenConstants.COLUMNTYPE_TEXT, dataType)) {
            // 字符串长度超过500设置为文本域
            Integer columnLength = getColumnLength(column.getColumnType());
            String htmlType = columnLength >= 500 || arraysContains(GenConstants.COLUMNTYPE_TEXT, dataType) ? GenConstants.HTML_TEXTAREA : GenConstants.HTML_INPUT;
            column.setHtmlType(htmlType);
        } else if (arraysContains(GenConstants.COLUMNTYPE_TIME, dataType)) {
            column.setJavaType(GenConstants.TYPE_DATE);
            column.setHtmlType(GenConstants.HTML_DATETIME);
        } else if (arraysContains(GenConstants.COLUMNTYPE_NUMBER, dataType)) {
            column.setHtmlType(GenConstants.HTML_INPUT);

            // 如果是浮点型 统一用BigDecimal
            String[] str = StringUtils.split(StringUtils.substringBetween(column.getColumnType(), StringPoolConstant.LEFT_BRACKET, StringPoolConstant.RIGHT_BRACKET), ",");
            if (str != null && str.length == 2 && Integer.parseInt(str[1]) > 0) {
                column.setJavaType(GenConstants.TYPE_BIGDECIMAL);
            }
            // 如果是整形
            else if (str != null && str.length == 1 && Integer.parseInt(str[0]) <= 10) {
                column.setJavaType(GenConstants.TYPE_INTEGER);
            }
            // 长整形
            else {
                column.setJavaType(GenConstants.TYPE_LONG);
            }
        }

        // 插入字段（默认所有字段都需要插入）
        column.setIsInsert(GenConstants.REQUIRE);

        // 编辑字段
        if (!arraysContains(GenConstants.COLUMNNAME_NOT_EDIT, columnName) && !column.isPk()) {
            column.setIsEdit(GenConstants.REQUIRE);
        }
        // 列表字段
        if (!arraysContains(GenConstants.COLUMNNAME_NOT_LIST, columnName) && !column.isPk()) {
            column.setIsList(GenConstants.REQUIRE);
        }
        // 查询字段
        if (!arraysContains(GenConstants.COLUMNNAME_NOT_QUERY, columnName) && !column.isPk()) {
            column.setIsQuery(GenConstants.REQUIRE);
        }

        // 查询字段类型
        if (StringUtils.endsWithIgnoreCase(columnName, "name")) {
            column.setQueryType(GenConstants.QUERY_LIKE);
        }
        // 状态字段设置单选框
        if (StringUtils.endsWithIgnoreCase(columnName, "status")) {
            column.setHtmlType(GenConstants.HTML_RADIO);
        }
        // 类型&性别字段设置下拉框
        else if (StringUtils.endsWithIgnoreCase(columnName, "type")
                || StringUtils.endsWithIgnoreCase(columnName, "sex") || StringUtils.endsWithIgnoreCase(columnName, "gender")) {
            column.setHtmlType(GenConstants.HTML_SELECT);
        }
        // 图片字段设置图片上传控件
        else if (StringUtils.endsWithIgnoreCase(columnName, "image") || StringUtils.endsWithIgnoreCase(columnName, "pic")) {
            column.setHtmlType(GenConstants.HTML_IMAGE_UPLOAD);
        }
        // 文件字段设置文件上传控件
        else if (StringUtils.endsWithIgnoreCase(columnName, "file")) {
            column.setHtmlType(GenConstants.HTML_FILE_UPLOAD);
        }
        // 内容字段设置富文本控件
        else if (StringUtils.endsWithIgnoreCase(columnName, "content")) {
            column.setHtmlType(GenConstants.HTML_EDITOR);
        }
    }

    /**
     * 校验数组是否包含指定值
     *
     * @param arr         数组
     * @param targetValue 值
     * @return 是否包含
     */
    private static boolean arraysContains(String[] arr, String targetValue) {
        return Arrays.asList(arr).contains(targetValue);
    }

    /**
     * 获取模块名
     *
     * @param packageName 包名
     * @return 模块名
     */
    private static String getModuleName(String packageName) {
        int lastIndex = packageName.lastIndexOf(StringPoolConstant.DOT);
        int nameLength = packageName.length();
        return StringUtils.substring(packageName, lastIndex + 1, nameLength);
    }

    /**
     * 获取业务名
     *
     * @param tableName 表名
     * @return 业务名
     */
    private static String getBusinessName(String tableName) {
        int lastIndex = tableName.lastIndexOf(StringPoolConstant.UNDERSCORE);
        int nameLength = tableName.length();
        return StringUtils.substring(tableName, lastIndex + 1, nameLength);
    }

    /**
     * 获取表名前缀
     *
     * @param tableName 表名称
     * @return 类名
     */
    private static String converTablePrefix(String tableName) {
        boolean autoRemovePre = GenConfig.AUTO_REMOVE_PRE;
        int index = tableName.indexOf(StringPoolConstant.UNDERSCORE);
        if (autoRemovePre && index != -1) {
            return tableName.substring(0, index + 1);
        }
        return StringPoolConstant.EMPTY;
    }

    /**
     * 表名转换成Java类名
     *
     * @param tableName   表名称
     * @param tablePrefix 表名前缀
     * @return 类名
     */
    private static String convertClassName(String tableName) {
        String tablePrefix = converTablePrefix(tableName);
        if (ValidatorUtil.isNotNull(tablePrefix)) {
            String[] searchList = StringUtils.split(tablePrefix, StringPoolConstant.COMMA);
            tableName = replaceFirst(tableName, searchList);
        }
        return StringUtil.convertToCamelCase(tableName);
    }

    /**
     * 表名转换成连接符类名 java-test
     *
     * @param tableName 表名
     * @return
     */
    public static String convertDashName(String tableName) {
        String tablePrefix = GenUtils.converTablePrefix(tableName);
        if (ValidatorUtil.isNotNull(tablePrefix)) {
            String[] searchList = StringUtils.split(tablePrefix, StringPoolConstant.COMMA);
            tableName = replaceFirst(tableName, searchList);
        }
        return tableName.replace(StringPoolConstant.UNDERSCORE, StringPoolConstant.DASH);
    }

    /**
     * 批量替换前缀
     *
     * @param replacementm 替换值
     * @param searchList   替换列表
     * @return
     */
    private static String replaceFirst(String replacementm, String[] searchList) {
        String text = replacementm;
        for (String searchString : searchList) {
            if (replacementm.startsWith(searchString)) {
                text = replacementm.replaceFirst(searchString, StringPoolConstant.EMPTY);
                break;
            }
        }
        return text;
    }

    /**
     * 关键字替换
     *
     * @param text 需要被替换的名字
     * @return 替换后的名字
     */
    private static String replaceText(String text) {
        String regx = "(?:表|)";
        return RegExUtils.replaceAll(text, regx, StringPoolConstant.EMPTY);
    }

    /**
     * 获取数据库类型字段
     *
     * @param columnType 列类型
     * @return 截取后的列类型
     */
    private static String getDbType(String columnType) {
        if (StringUtils.indexOf(columnType, StringPoolConstant.LEFT_BRACKET) > 0) {
            return StringUtils.substringBefore(columnType, StringPoolConstant.LEFT_BRACKET);
        } else {
            return columnType;
        }
    }

    /**
     * 获取字段长度
     *
     * @param columnType 列类型
     * @return 截取后的列类型
     */
    private static Integer getColumnLength(String columnType) {
        if (StringUtils.indexOf(columnType, StringPoolConstant.LEFT_BRACKET) > 0) {
            String length = StringUtils.substringBetween(columnType, StringPoolConstant.LEFT_BRACKET, StringPoolConstant.RIGHT_BRACKET);
            return Integer.valueOf(length);
        } else {
            return 0;
        }
    }

}
